Thank you very much for your detailed analysis based on hard data. Everyone has an opinion on the sharpness, quality, and value of certain lenses. There's merit to what people write in subjective reviews, but having objective data is very helpful.
It would be helpful to add Nikon's 24-85mm AF-S 3.5-4.5 G standard kit zoom lens to the analysis. The reason for this is that many D600 and some D800 users probably own this lens. Adding this lens to this report would give readers a sense of how much improvement there would be when upgrading from the standard kit lens to something better.
Finally, it would be nice if you could also add the Nikkor AF DC 105mm F2.0/D lens (the one with defocus control) as well.